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The bicycle alone has a mass of 10 kg. A person pushes the bicycle with a force of 75 N [N] at a constant speed. Recall Newton's first law of motion. The person then lifts the bicycle up at a constant velocity, doing 49 Joules of work in the process.
a) To what height did the person lift the bicycle?
b) How much work does the person do if the person then walks forward for a distance of 120 m carrying the bicycle. Explain your reasoning about the amount of work done.
When the emf for the primary of a transformer is of amplitude 7.10 V, the secondary emf is 85.2 V in amplitude. What is the transformer turns ratio
A slide projector needs to create a 87 cm high image of a 2.0 cm tall slide. The screen is 310 cm from the slide. Assume that it is a thin lens. How far should you place the lens from the slide
In a sodium vapor lamp visible light is emitted with a wavelength of 5840 Å. How many photons are emitted per second if the lamp has a 25-Wrating?
Does food irradiation leave the food radioactive? To what extent is the food altered chemically for low and high doses in food irradiation?
A Young's double-slit interference experiment gives bright fringes separated by 30.5 cm on a screen when the experiment is performed in air. What is the new spacing between bright fringes
A mass of 5.10 kg is suspended from a 1.27 m long string. Calculate the angle between the string and the vertical
In a particular receiver in a wireless communications system, two signals are mixed together as part of the frequency down-conversion process.
An uncharged capacitor and a resistor are connected in series to a source of emf. If = 12.00 V, C = 17.0 µF, and R = 100 ?, estimate the maximum charge on the capacitor
If neutrons were in thermal equilibrium at temp of 300k, what is there average kinetic energy? What is the de Broglie wavelength of these thermal neutrons
consider a thin wire bent into the shape of a ring of radius of 10 cm that carries a steady 2.0-A current
a 2.2 kg object slides down a frictionless track starting 0.35 m above the ground to a horizontal surface where it
A sample of seawater weighs 158 g and has a volume of 156mL. What is the density?
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